Note more languages' package sites.
Note more languages' package sites.

Change-Id: Ia333c359182283f3654a66df5fbab6809c11e52d
Reviewed-on: https://code-review.googlesource.com/25170
Reviewed-by: Paul Wankadia <62d4e38bb1380f055ec4b899baa75e52af09c5f7@google.com>

google/re2,google/re2,google/re2,google/re2,google/re2